I am a prime contractor on a commercial project. What dollar amount and which conditional waiver do I request when the subcontractor sends in their billing for 100% complete? In our state of Minnesota, 5% retention is withheld from progress payments. The through date of the final billing (progress billing 2) is September 30, and is approved for 100% complete. Revised Contract Amount is $36,869.00 Previously Approved Amount is $13,127.50 Complete through September 30, Progress Billing 2: 100%. Current payment due is $21,898.05 Balance to finish (including 5% retainage) is $1,843.45